Re: [PATCH v7 2/5] seq_buf: Export seq_buf_printf() to external modules

[Joe Perches]

On Fri, 2020-05-08 at 17:30 +0530, Vaibhav Jain wrote:
> Hi Boris,
> 
> Borislav Petkov <bp@xxxxxxxxx> writes:
> 
> > On Fri, May 08, 2020 at 04:19:19PM +0530, Vaibhav Jain wrote:
> > > 'seq_buf' provides a very useful abstraction for writing to a string
> > > buffer without needing to worry about it over-flowing. However even
> > > though the API has been stable for couple of years now its stills not
> > > exported to external modules limiting its usage.
> > > 
> > > Hence this patch proposes update to 'seq_buf.c' to mark
> > > seq_buf_printf() which is part of the seq_buf API to be exported to
> > > external GPL modules. This symbol will be used in later parts of this
> > 
> > What is "external GPL modules"?
> I am referring to Kernel Loadable Modules with MODULE_LICENSE("GPL")
> here.

Any reason why these Kernel Loadable Modules with MODULE_LICENSE("GPL")
are not in the kernel tree?